问题描述：
[单选]
The cross-head shoes are white metal（）．
A．lining
B．lined
C．made
D．i
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：The cross-head shoes are white metal lined， grooves being cut horizontally on the face of the white metal to ensure（）．
下一篇：The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating（）．
- 我要回答: 网友(216.73.216.61)
- 热门题目: 1.当柴油机气缸套产生较大拉痕、 2.当气缸套工作表面有轻微的拉痕 3.在使用样板和专用内径千分尺测